It was commented animal trial process, effects factory and results of using N-free diet method for determining endogenous ileum protein (amino acid) flow in pig.

• 摘要分别从消化试验程序、影响测定的因素以及测定效果等三方面对无氮日粮方法测定猪回肠内源性蛋白质（氨基酸）流量进行了评述。